Method of purification using a steam cleaning assembly of an industrial exhaust dedusting and flocculation device

Abstract

This invention discloses a purification method using a steam cleaning component of an industrial waste gas dust removal device, belonging to the field of industrial waste gas dust removal technology. The purification method includes the following steps: removing contaminants from the filter screen using a steam cleaning component installed in a filter cartridge assembly; the steam nozzle in the steam cleaning component remains stationary while the filter cartridge assembly rotates, blowing steam towards the filter cartridge portion equipped with a brush roller cleaning component; the brush roller cleaning component and the extrusion component, together with the lower half of the filter cartridge, form a closed dust collection chamber; the portion of the housing excluding the dust collection chamber is filled with industrial waste gas, and the industrial waste gas purified by the filter cartridge assembly flows out through a through-hole on the driven ring rail; wherein, one end of the steam cleaning component is movably connected to the filter cartridge drive plate of the filter cartridge assembly, so that the rotation of the filter cartridge drive plate causes the filter cartridge to rotate, but the steam cleaning component remains stationary.

Description

[0001] This application is a divisional application of the patent application filed on September 9, 2022, with application number 202211103922.6 and entitled "Industrial Waste Gas Dust Removal Device and Purification Method". Technical Field

[0002] The embodiments of the present invention relate to the field of industrial waste gas dust removal and lint removal technology, and more particularly to a purification method using a steam cleaning component of an industrial waste gas dust removal and lint removal device. Background Technology

[0003] For example, the exhaust gas from industrial stenters mainly contains a large amount of smoke, dust, and lint, mixed with a large amount of oil mist, polystyrene organics, dyeing auxiliaries, and other components, which accumulate on the inner wall of the exhaust pipes over a long period of time. This not only produces foul-smelling gases but also increases the risk of fire. Therefore, dyeing and printing enterprises must regularly clean the exhaust pipes manually, resulting in high costs and significant risks.

[0004] Currently, filters are typically installed at the air outlet of the exhaust pipe and cleaned daily.

[0005] This method has the disadvantages of a small filtration area, which makes it prone to clogging, resulting in poor smoke exhaust from the stenter and an increased risk of fire.

[0006] Because the filter screen is installed above the setting machine and is located at a high-temperature discharge port, the manual cleaning operation environment is harsh and can easily cause burns.

[0007] It is desirable to provide an industrial exhaust gas dust removal device for intercepting dust and lint in exhaust gas, such as from industrial exhaust gas ducts, and for automatically collecting the dust and lint and generating clean air through an automatic cleaning filter. Summary of the Invention

[0008] The purpose of this invention is to provide an industrial waste gas dust removal device and purification method. In this invention, the rotation of the filter cartridge assembly can more effectively remove dust and lint from the industrial waste gas, and then the dust and lint on it is brushed off and collected by the brush roller cleaning assembly.

[0009] In a first aspect, a purification method using a steam cleaning assembly of an industrial waste gas dust removal device is provided, the purification method comprising the following steps:

[0010] The industrial waste gas to be purified enters the interior of the housing through the air inlet;

[0011] The filter screen of the continuously rotating filter cartridge assembly filters out dust and lint from industrial waste gas, and the dust and lint adhere to the filter screen.

[0012] Dust and lint are brushed off by the brush rollers on the brush roller cleaning assembly coming into contact with the filter screen.

[0013] The steam cleaning component installed in the cartridge filter assembly removes contaminants from the filter screen;

[0014] The dust particles are compressed into shape by an extrusion component located below the brush roller cleaning assembly;

[0015] The steam nozzle in the steam cleaning assembly remains stationary while the filter cartridge assembly rotates, blowing steam towards the filter cartridge section where the brush roller cleaning assembly is located.

[0016] The brush roller cleaning assembly and the extrusion assembly together with the lower half of the filter cartridge form a closed dust collection cavity;

[0017] The portion of the housing, excluding the dust collection chamber, is filled with industrial waste gas. The industrial waste gas, after being purified by the filter cartridge assembly, flows out through the through-hole on the driven ring rail.

[0018] One end of the steam cleaning component is movably connected to the filter cartridge drive plate of the filter cartridge filtration component, so that the rotation of the filter cartridge filtration component drives the filter cartridge to rotate, but the steam cleaning component remains stationary.

[0019] In an embodiment of the first aspect, the other end of the steam cleaning assembly passes through the center hole of the driven ring rail of the filter cartridge assembly and is movably connected to the driven ring rail.

[0020] In the first aspect of the embodiment, the oily particulate matter in the industrial waste gas accumulates on the outer wall surface of the filter cartridge assembly, and the steam cleaning assembly is disposed inside the filter cartridge assembly and removes the oily particulate matter by spraying steam.

[0021] In the first aspect of the embodiment, oil fume particulate pollutants on the filter screen or filter cartridge of the filter cartridge filtration assembly are cleaned off by high temperature and high pressure.

[0022] In an embodiment of the first aspect, the steam cleaning assembly includes a steam nozzle and a plurality of steam holes disposed on the steam nozzle, wherein the steam holes in the steam cleaning assembly always blow steam toward the lower part of the filter cartridge.

[0023] In the first aspect of the embodiment, the steam cleaning assembly further includes an internal threaded connector, a steam inlet connecting pipe, a steam valve, a steam nozzle shaft seat, a steam nozzle plug, and a bearing;

[0024] The steam nozzle is configured in a downward-bending shape, and the steam nozzle includes a straight first pipe section, a downward-extending second pipe section connecting the first pipe section, a straight third pipe section connecting the second pipe section, an upward-extending fourth pipe section connecting the third pipe section, and a straight fifth pipe section connecting the fourth pipe section and extending outward.

[0025] In the embodiment of the first aspect, the second and fourth pipe segments form an angle of 60-170 degrees with the third pipe segment;

[0026] The second and fourth pipe sections are connected to the third pipe section via an arc or a slow bend.

[0027] In the first aspect of the embodiment, the first pipe section is connected to the internal threaded connector through a shaft at its left end. The internal threaded connector is fixedly connected to the center hole of the driven ring rail of the filter cartridge assembly and is also connected to the steam inlet connection pipe through a shaft. The steam inlet connection pipe is connected to the steam valve pipeline, and the steam valve controls the flow rate of steam entering the steam inlet connection pipe.

[0028] The right end of the steam nozzle is movably connected to a bearing on the filter cartridge drive plate. The bearing is connected to the steam nozzle shaft seat and a steam nozzle plug is provided at the end.

[0029] In an embodiment of the first aspect, the steam nozzle is provided with a plurality of jet holes arranged at intervals;

[0030] Steam struts are provided between the second and fourth pipe sections, and the steam struts are positioned close to the first or fifth pipe section.

[0031] In the first aspect of the embodiment, the filter cartridge assembly is allowed to rotate by providing an internal threaded connector at the left end and a bearing and steam nozzle bearing seat at the right end, while the steam cleaning assembly remains stationary and always blows steam toward the side where the brush roller cleaning assembly is located.

[0032] According to one aspect of the present invention, an industrial waste gas dust removal and linting device is provided, wherein industrial waste gas enters from the inlet of the industrial waste gas dust removal and linting device, is purified, and is discharged from the outlet of the industrial waste gas dust removal and linting device, the industrial waste gas dust removal and linting device comprising:

[0033] A housing, wherein the air inlet and air outlet are provided on the housing;

[0034] The cartridge filter assembly is installed inside the housing. The outer periphery of the cartridge filter assembly is connected to the air inlet, and the internal cavity of the cartridge filter assembly is connected to the air outlet.

[0035] The brush roller cleaning assembly is located below the filter cartridge assembly and is used to brush away dust and lint from the filter cartridge assembly.

[0036] In some embodiments, the cartridge filtration assembly includes:

[0037] Filter cartridge;

[0038] The filter screen attached to the filter cartridge;

[0039] A filter cartridge drive plate located on one end of the filter cartridge and fixedly connected to the filter cartridge;

[0040] A drive shaft located at the center of the filter cartridge drive plate and driving the filter cartridge to rotate;

[0041] A driven ring rail is located at the other end of the filter cartridge.

[0042] In some embodiments, the driven ring rail is annular and has a hollow structure in the middle;

[0043] The driven ring rail has a central hole at its center, and multiple through holes are arranged around the central hole;

[0044] The through holes are distributed in a star-shaped or plum-blossom pattern.

[0045] In some embodiments, a sealing structure is further provided between the driven ring rail and the inner wall of the filter cartridge, wherein the sealing structure includes a sealing ring or graphite packing.

[0046] The filter cartridge is also provided with an internal support, which is arranged in a ring along the longitudinal direction of the filter cartridge.

[0047] In some embodiments, the brush roller cleaning assembly includes:

[0048] Base plate;

[0049] A brush roller that can be rotatably mounted on a base plate;

[0050] A brush roller connecting shaft, wherein the brush roller is rotatably mounted on the brush roller connecting shaft;

[0051] A bearing with a mounting bracket is provided, and the brush roller connecting shaft is mounted on the bearing with a mounting bracket.

[0052] Adjusting block, wherein the seated bearing is mounted on the adjusting block;

[0053] The first baffle is disposed on the adjusting block;

[0054] A cleaning brush is provided on the base plate corresponding to the brush roller.

[0055] In some embodiments, the brush roller cleaning assembly further includes a baffle adjusting plate disposed at a position corresponding to the brush roller and a second baffle disposed on the baffle adjusting plate;

[0056] The shapes of the first and second baffles match the shape of the filter cartridge assembly;

[0057] The first baffle and the second baffle are respectively configured as outward-curving arcs.

[0058] The bottom plate is hollow in the middle. The first baffle, brush roller, bottom plate, second baffle and baffle adjusting plate, together with the extrusion assembly set below, form a sealed dust collection cavity.

[0059] In some embodiments, the industrial waste gas dust removal device further includes a steam cleaning component, which is disposed inside the filter cartridge assembly and removes pollutants adhering to the filter cartridge assembly by spraying steam.

[0060] The squeezing component, located below the brush roller cleaning component, is used to squeeze out the dust and lint brushed off.

[0061] In some embodiments, the steam cleaning assembly includes:

[0062] Steam nozzle;

[0063] Multiple steam holes are provided on the steam nozzle;

[0064] An internal threaded connector is fixedly connected to the driven ring rail of the filter cartridge assembly, and one end of the steam nozzle is connected to the internal threaded connector through a shaft.

[0065] A steam inlet connecting pipe, one end of which is connected to an internal threaded connector;

[0066] A steam valve, with the other end of the steam inlet connecting pipe connected to the steam valve;

[0067] The other end of the steam nozzle is movably connected to the bearing and to the drive shaft of the filter cartridge assembly.

[0068] Steam nozzle bearing seat, which is fixedly connected to the bearing;

[0069] The steam nozzle plug is located at the end of the steam nozzle shaft seat.

[0070] In some embodiments, the steam nozzle includes a straight first pipe section, a downwardly extending second pipe section connecting to the first pipe section, a straight third pipe section connecting to the second pipe section, an upwardly extending fourth pipe section connecting to the third pipe section, and a straight fifth pipe section connecting to the fourth pipe section and extending outwardly.

[0071] The second and fourth pipe sections form an angle of 60-170 degrees with the third pipe section; or

[0072] The second and fourth pipe sections are connected to the third pipe section via an arc or a slow bend.

[0073] In some embodiments, a steam strut is provided between the second pipe segment and the fourth pipe segment;

[0074] The steam strut is located in the second pipe section near the first pipe section or in the fourth pipe section near the fifth pipe section;

[0075] The extensions of the second and fourth pipe segments are perpendicular to the third pipe segment, respectively.

[0076] According to another aspect of the present invention, a purification method using the above-described industrial waste gas dust removal device is provided, the method comprising the following steps:

[0077] The industrial waste gas to be purified enters the interior of the housing through the air inlet;

[0078] The filter screen of the continuously rotating filter cartridge assembly filters out dust and lint from industrial waste gas, and the dust and lint adhere to the filter screen.

[0079] Dust and lint are removed by brushing the brush rollers on the brush roller cleaning assembly into contact with the filter screen.

[0080] In some embodiments, the method further includes removing contaminants from the filter screen using a steam cleaning component disposed in the cartridge filter assembly;

[0081] The dust particles are compressed into shape by an extrusion assembly located below the brush roller cleaning assembly.

[0082] In some embodiments, the steam nozzle in the steam cleaning assembly remains stationary while the filter cartridge assembly rotates, blowing steam toward the filter cartridge portion where the brush roller cleaning assembly is located.

[0083] The brush roller cleaning assembly and the extrusion assembly together with the lower half of the filter cartridge form a closed dust collection chamber.

[0084] In some embodiments, the portion of the housing excluding the dust collection chamber is filled with industrial waste gas, which, after being purified by the filter cartridge assembly, flows out through the through-hole on the driven ring rail.

[0085] Other objects and advantages of the invention will become apparent from the following description of embodiments of the invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the invention. Attached Figure Description

[0086] The present invention will be further described in detail with reference to the accompanying drawings, in which:

[0087] Figure 1 This is a schematic diagram of the overall structure of an industrial waste gas dust removal device provided in one embodiment of the present invention;

[0088] Figure 2 yes Figure 1 A schematic diagram of the structure of an industrial waste gas dust removal and lint removal device;

[0089] Figure 3 yes Figure 2The diagram shows a cross-sectional view of the industrial waste gas dust removal and lint removal device after being cut along line AA.

[0090] Figure 4 yes Figure 2 Left view of the industrial waste gas dust removal and lint removal device shown;

[0091] Figure 5A yes Figure 3 An overall view of the filter cartridge assembly in the industrial waste gas dust removal device shown;

[0092] Figure 5B yes Figure 5A A three-dimensional view of the cartridge filter assembly;

[0093] Figure 5C yes Figure 5A Left side view of the cartridge filter assembly;

[0094] Figure 5D yes Figure 5A Right side view of the cartridge filter assembly;

[0095] Figure 5E yes Figure 5D The cross-sectional view of the filter cartridge assembly cut along the EE line is shown.

[0096] Figure 6 yes Figure 4 The cross-sectional view of the industrial waste gas dust removal and lint removal device after being cut along line BB is shown.

[0097] Figure 7 yes Figure 3 The diagram shows the structure of the brush roller cleaning assembly.

[0098] Figure 8 yes Figure 7 A 3D view of the brush roller dust removal assembly;

[0099] Figure 9 yes Figure 2 The diagram shows a cross-sectional view of the industrial waste gas dust removal device after being cut along line DD. Detailed Implementation

[0100] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation thereof.

[0101] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details.

[0102] See Figure 1-3 An industrial waste gas dust removal device according to an embodiment of the present invention is shown.

[0103] Industrial waste gas enters through the inlet 501 of the industrial waste gas dust removal device, is purified, and then exits through the outlet 502. The industrial waste gas dust removal device includes components such as a housing 500, a filter cartridge assembly 100, and a brush roller cleaning assembly 200. The housing 500 is provided with the inlet 501 and the outlet 502. The filter cartridge assembly 100 is disposed inside the housing 500, with its periphery communicating with the inlet 501 and its internal cavity communicating with the outlet 502. The brush roller cleaning assembly 200 is disposed below the filter cartridge assembly 100 and is used to brush away dust and lint from the filter cartridge assembly 100.

[0104] Accordingly, the present invention also provides a purification method using the aforementioned industrial waste gas dust removal and lint removal device, the method comprising the following steps:

[0105] The industrial waste gas to be purified enters the interior of the housing 500 through the air inlet 501;

[0106] The filter screen of the continuously rotating filter cartridge assembly 100 filters out dust and lint from the industrial waste gas, and the dust and lint adhere to the filter screen.

[0107] Dust and lint are brushed off by the brush rollers on the brush roller cleaning assembly 200 contacting the filter screen.

[0108] In use, this industrial waste gas dust removal device is used to remove dust and lint from the industrial waste gas from the outlet of the stenter. First, the industrial waste gas enters the housing 500 of the industrial waste gas dust removal device through the air inlet 501. After passing through the filter cartridge assembly 100, brush roller cleaning assembly 200, extrusion assembly 300, steam cleaning assembly 400 (if installed) and other components in the industrial waste gas dust removal device, it flows out from the air outlet 502 and enters the exhaust duct for further purification or discharge.

[0109] like Figure 2 As shown, the diagram depicts cuts along lines AA and DD of the industrial waste gas dust removal device to reveal the location of its internal components in more detail. Further details will be provided in conjunction with the corresponding sectional views.

[0110] Figure 3 Show along Figure 2A cross-sectional view of the industrial waste gas dust removal device after AA wire cutting. The filter cartridge assembly 100 is clearly visible, with its left port open to allow the purified industrial waste gas to flow out from the central area of ​​the filter cartridge assembly 100. Combined with... Figure 1 and Figure 2 It can be seen that most of the area of ​​the housing 500 is filled with industrial waste gas to be purified flowing in from the air inlet 501. After being filtered by the filter cartridge filter assembly 100, dust, lint, dyeing auxiliary agent particles and other dust particles are filtered out. The dust particles that are stuck to the circumferential surface of the filter cartridge filter assembly 100 are washed down by the steam cleaning assembly 400 set in the middle of the filter cartridge filter assembly 100 with steam. After being collected and cleaned by the brush roller cleaning assembly 200, they fall into the extrusion assembly 300 and are extruded and formed, thereby collecting the dust particles together. The purified industrial waste gas enters the filter cartridge filter assembly 100 and finally enters the exhaust pipe from its left end through the air outlet 502.

[0111] See Figure 4 The image shows a left-side view of an industrial waste gas dust removal device. It is evident that the left side of the cartridge filter assembly 100 is open to allow the purified industrial waste gas to flow out from the outlet 502. The cartridge filter assembly 100 is driven within the housing 500 by a drive shaft 106 (see [reference]). Figure 5A ).

[0112] from Figures 5A-5E As can be seen, the filter cartridge filtration assembly 100 includes components such as a filter cartridge drive plate 101, a filter cartridge driven plate 102, a filter cartridge 103, a filter screen 104, a filter cartridge inner support 105, a drive shaft 106, and a driven ring rail 107.

[0113] The filter cartridge 103 has a diameter of 800 mm and is made of, for example, a perforated plate rolled into a cylinder. The diameter of the holes in the steel plate can be selected according to actual needs. The filter screen 104 is attached and fixed to the filter cartridge 103. The filter screen 104 can be selected with a mesh size of 80 mesh, or other suitable mesh sizes can be selected. Preferably, the filter screen 104 is made of stainless steel.

[0114] A filter cartridge drive plate 101 is provided at the right end of the filter cartridge 103. The diameter of the filter cartridge 103 is matched by the drive plate 101 and a drive shaft 106 is provided at its center. The drive shaft 106 is driven to rotate by an external drive assembly 600.

[0115] See Figure 5BThe left end of the filter cartridge 103 is provided with a driven annular rail 107. This driven annular rail 107 is ring-shaped and has a hollow structure in the middle. This hollow structure allows purified industrial waste gas to pass through. In one example, the driven annular rail 107 has a central hole 108, and multiple through holes 109 are arranged around the central hole 108 on the driven annular rail 107 to allow purified industrial waste gas to pass through. As shown in the figure, the multiple through holes 109 are distributed in a star-shaped or plum-blossom pattern.

[0116] The driven ring rail 107 is manufactured by machining on a lathe or turning into a circle, and its shape and size match those of the filter cartridge 103.

[0117] The driven ring rail 107 is fixedly connected to the left end of the filter cartridge 103, thus providing support. In practice, the filter cartridge 103 is typically 1.5 meters long, resulting in a significant overall weight, necessitating robust support at the left end. Furthermore, as mentioned above, to prevent industrial waste gas from being directly drawn away between the filter cartridge 103 and the driven ring rail 107, a sealing structure 110 is provided between the inner wall of the filter cartridge 103 and the driven ring rail 107. This sealing structure 110 can be, for example, a sealing ring or graphite packing, etc. (See [reference]). Figure 5C .

[0118] Combination Figure 3 It can be seen that the portion of the filter cartridge 103 above the contact height with the brush roller cleaning assembly 200 can be considered as the industrial waste gas intake zone, meaning that industrial waste gas is drawn into the filter cartridge 103 from the upper part. The lower part of the filter cartridge 103, together with the brush roller cleaning assembly 200 and the extrusion assembly 300, forms a dust treatment zone or dust collection chamber, which is always under negative pressure. To achieve better treatment results, a sealed connection between the driven ring rail 107 and the filter cartridge 103 is essential; otherwise, dust and lint cannot be effectively removed.

[0119] In one embodiment, see Figure 5D and Figure 5E One end of the steam cleaning assembly 400 is connected to the filter cartridge drive plate 101, i.e., it is movably connected to the filter cartridge drive plate 101, so that the rotation of the drive shaft 106 can drive the filter cartridge 103 to rotate, but the steam cleaning assembly 400 remains stationary. The other end of the steam cleaning assembly 400 passes through the center hole 108 of the driven ring rail 107 and is movably connected to it.

[0120] The filter cartridge 103 is also provided with annular internal supports 105 distributed along the longitudinal direction of the filter cartridge 103 to support the filter cartridge 103 from the inside. As mentioned above, the filter cartridge 103 is generally quite long and, because it is made of steel plate, it is quite heavy, requiring better support.

[0121] See Figure 6 ,along Figure 4 The structural view after BB wire cutting shows the specific structure of the steam cleaning assembly 400.

[0122] Because industrial waste gas contains a large amount of oily particulate matter, it will accumulate on the outer wall of the filter cartridge 100, making it difficult to clean effectively.

[0123] In the illustrated example, the interior of the cartridge filter assembly 100 is equipped with a steam cleaning assembly 400 to effectively remove oil fume particles by spraying steam.

[0124] In fact, the oil fume particulate pollutants on the filter screen 104 or filter cartridge 103 are cleaned off by high temperature and high pressure.

[0125] The steam cleaning assembly 400 includes a steam nozzle 402 and a plurality of steam holes disposed on the steam nozzle 402. The steam cleaning assembly 400 is fixed within the filter cartridge 100, meaning it does not rotate with the rotation of the filter cartridge 100. In fact, the steam holes in the steam cleaning assembly 400 always blow steam downwards towards the filter cartridge 103.

[0126] In one example, the steam cleaning assembly 400 also includes an internal threaded connector 403, a steam inlet connection pipe 404, a steam valve 405, a steam nozzle shaft seat 406, a steam nozzle plug 407, and a bearing 408.

[0127] The steam nozzle 402 is configured to bend downwards. Specifically, the steam nozzle 402 includes a straight first pipe section 4021, a downwardly extending second pipe section 4022 connected to the first pipe section 4021, a straight third pipe section 4023 connected to the second pipe section 4022, an upwardly extending fourth pipe section 4024 connected to the third pipe section 4023, and a straight fifth pipe section 4025 connected to the fourth pipe section 4024 and extending outwards.

[0128] Preferably, the second pipe segment 4022 and the fourth pipe segment 4024 form an angle of 60-170 degrees with the third pipe segment 4023. For simplicity and efficiency, the angle between them is close to 90 degrees, which allows the third pipe segment 4023 to extend downwards and get closer to the filter cartridge 103 for steam blowing under the same conditions. In practice, since it is a steel pipe at the bend, the second pipe segment 4022 and the fourth pipe segment 4024 are connected to the third pipe segment 4023 by an arc or a slow bend. Alternatively, the extension lines of the second pipe segment 4022 and the fourth pipe segment 4024 are perpendicular to the third pipe segment 4023.

[0129] The first pipe section 4021 is connected to the internal threaded connector 403 at its left end via a through-shaft. The internal threaded connector 403 is fixedly connected to the filter cartridge assembly 100 (specifically, to the center hole 108 of the driven ring rail 107) and is also connected to the steam inlet connecting pipe 404 via a through-shaft. The steam inlet connecting pipe 404 is connected to the steam valve 405, which controls the flow rate of steam entering the steam inlet connecting pipe 404. The right end of the steam nozzle 402 is movably connected to the bearing 408 provided on the filter cartridge drive plate 101. The bearing 408 is connected to the steam nozzle shaft seat 406, and a steam nozzle shaft plug 407 is provided at its end.

[0130] The steam nozzle 402 is provided with multiple steam holes arranged at intervals. The size and shape of the steam holes and the interval between two adjacent steam holes can be selected according to actual needs.

[0131] To strengthen the support of the steam nozzle 402, a steam strut 401 is also provided at the downward bend of the steam nozzle 402. Specifically, a steam strut 401 is provided between the second pipe section 4022 and the fourth pipe section 4024. The steam strut 401 is located near the first pipe section 4021 or the fifth pipe section 4025.

[0132] By providing an internal threaded connector 403 at the left end and a bearing 408 and a steam nozzle bearing 406 at the right end, the filter cartridge assembly 100 can rotate while the steam cleaning assembly 400 remains stationary, always blowing steam toward the side where the brush roller cleaning assembly 200 is located. This allows all oil fume particles on the entire filter cartridge 103 to be cleaned away.

[0133] Combination Figure 3 and Figure 7 The brush roller cleaning assembly 200 is disposed below the filter cartridge assembly 100, and the brush roller cleaning assembly 200 contacts the filter cartridge assembly 100 at least in a partial position so as to brush off the dust and lint from it.

[0134] The brush roller cleaning assembly 200 includes a brush roller 201, a brush roller connecting shaft 202, a bearing with a seat 203, an adjusting block 204, a cleaning brush 205, a first baffle 206, a second baffle 209, a baffle adjusting plate 207, and a base plate 208.

[0135] The brush roller 201 is rotatably mounted on the base plate 208. Specifically, the brush roller 201 is rotatably mounted on the brush roller connecting shaft 202. The brush roller connecting shaft 202 is mounted on the bearing 203, for example, the brush roller connecting shaft 202 is mounted inside the bearing 203 and is movably connected to it at both ends to facilitate rotation.

[0136] In order to adjust the height of the brush roller 201 to adjust the gap between the worn brush roller 201 and the filter cartridge 103, the bearing 203 and the brush roller connecting shaft 202 can be mounted together on the adjusting block 204.

[0137] A bearing 203 with a seat is provided on the other side of the base plate 208. A brush roller connecting shaft 202 is provided on the bearing 203, and a brush roller 201 is provided on the brush roller connecting shaft 202. The brush roller connecting shaft 202 can connect to the brush roller 201 and allow the brush roller 201 to rotate.

[0138] The seated bearing 203 is connected to the base plate 208 in an adjustable height via the adjusting block 204, which means that the gap between the brush roller 201 and the filter cartridge 103 can be adjusted when the brush roller 201 is worn.

[0139] To clean the dust and lint on the brush roller 201, a cleaning brush 205 can be installed on the base plate 208 near the brush roller 201 to facilitate the cleaning of dust and lint.

[0140] Correspondingly, a first baffle 206 is also provided on the bottom plate 208 or the adjusting block 204 in the outward direction of the brush roller 201, so that the dust and lint at the lower right end of the filter cartridge 103 can fall into the extrusion assembly 300 to the greatest extent.

[0141] The first baffle 206 is disposed on the adjusting block 204, so that the height of the first baffle 206 is adjusted accordingly while the height of the adjusting block 204 is adjusted.

[0142] A baffle adjusting plate 207 and a second baffle 209 fixedly connected to the baffle adjusting plate 207 are provided at one end of the base plate 208. The second baffle 209 is spaced very small gap from the lower part of the filter cartridge 103, thereby allowing the filter cartridge 103 to rotate and blocking the dust and lint on the filter cartridge 103 to the greatest extent and letting it fall into the extrusion assembly 300 (e.g., a screw extruder) provided below. In practice, the filter cartridge 103 rotates counterclockwise, and the brush roller 201 contacts the filter cartridge 103 and rotates clockwise to brush off the dust and lint.

[0143] The first baffle 206 and the second baffle 209 are configured as outward-curved plates to facilitate the collection of dust falling on them, and they match the shape of the bottom of the filter cartridge 103 to help form a closed dust collection chamber.

[0144] See Figure 8 The brush roller cleaning assembly 200 has an overall upward-opening cavity shape, and the curvature of the first baffles 206 on both sides roughly matches that of the filter cartridge 103.

[0145] Dust and lint brushed off from the filter cartridge 103 fall into the extrusion assembly 300 through the open cavity and are extruded into shape.

[0146] In one example, the extrusion assembly 300 may be a screw extruder.

[0147] from Figure 8 As can be seen, the bottom plate 208 is hollow in the middle. Thus, the first baffle 206, brush roller 201, bottom plate 208, second baffle 209, and baffle adjusting plate 207, together with the extrusion assembly 300 below, constitute a sealed dust collection chamber. In other words, the dust collection chamber can be regarded as a large funnel.

[0148] See Figure 9 The drive assembly 600 in this example is shown. As described above, the industrial waste gas dust removal device includes a cartridge filter assembly 100 connected to the industrial waste gas outlet, a brush roller cleaning assembly 200 disposed below the cartridge filter assembly, and an extrusion assembly 300 disposed below and in communication with the brush roller cleaning assembly 200, the extrusion assembly 300 being located on the lower part of one side of the industrial waste gas dust removal device.

[0149] The drive assembly 600 is located at the lower part of the industrial waste gas dust removal device and is opposite to the extrusion assembly 300. As shown in the figure, the drive assembly 600 and the extrusion assembly 300 are arranged at the same height level within the housing 500.

[0150] The drive assembly 600 includes a controller 601, a drive sprocket 602, a chain 603, a driven sprocket 604, a tension sprocket 605, a motor mounting base 606, and a geared motor 607.

[0151] The controller 601 can control the driving force of the drive mechanism, such as the motor drive, and the speed of the drive shaft 106 can be controlled by the geared motor 607. The geared motor 607 is mounted on the motor mounting base 606, and the motor shaft of the geared motor 607 is connected to the drive sprocket 602 and the driven sprocket 604 by the chain 603.

[0152] The tension of chain 603 is adjusted by tension sprocket 605 on the outer side. Drive sprocket 602 is directly or indirectly connected to drive shaft 106 to drive its rotation.

[0153] In one example, drive sprocket 602 is connected to and drives the drive shaft 106 of cartridge filter assembly 100 to rotate. Driven sprocket 604 is connected to the screw of extrusion assembly 300 to drive its rotation.

[0154] Of course, those skilled in the art can also drive the filter cartridge assembly 100 and the extrusion assembly 300 in other ways.

[0155] In addition, other embodiments of the present invention provide further implementation steps of the purification method.

[0156] In some embodiments, the purification method further includes removing contaminants that are difficult to brush off the filter screen 104 by using a steam cleaning assembly 400 provided in the filter cartridge filtration assembly 100;

[0157] The dust particles are extruded and shaped by the extrusion assembly 300 located below the brush roller cleaning assembly 200.

[0158] In some embodiments, the steam nozzle 402 in the steam cleaning assembly 400 remains stationary while the filter cartridge assembly 100 rotates, blowing steam toward the filter cartridge 103 portion where the brush roller cleaning assembly 200 is located.

[0159] The brush roller cleaning assembly 200 and the extrusion assembly 300 together with the lower half of the filter cartridge 103 form a closed dust collection chamber.

[0160] In some embodiments, the portion of the housing 500 excluding the dust collection chamber is filled with industrial waste gas, and the industrial waste gas purified by the filter cartridge assembly 100 flows out through the through hole 109 on the driven ring rail 107.

[0161] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A purification method using a steam cleaning assembly of an industrial waste gas dust removal device, the purification method comprising the following steps: The industrial waste gas to be purified enters the interior of the casing through the air inlet; The filter screen of the continuously rotating filter cartridge assembly filters out dust and lint from industrial waste gas, and the dust and lint adhere to the filter screen. Dust and lint are brushed off by the brush rollers on the brush roller cleaning assembly coming into contact with the filter screen. The steam cleaning component installed in the cartridge filter assembly removes contaminants from the filter screen; The dust particles are compressed into shape by an extrusion component located below the brush roller cleaning assembly; The steam nozzle in the steam cleaning assembly is configured with a downward-bent shape. The steam nozzle includes a straight first section, a downward-extending second section connecting to the first section, a straight third section connecting to the second section, an upward-extending fourth section connecting to the third section, and a straight fifth section connecting to the fourth section and extending outwards. The steam nozzle remains stationary while the filter cartridge assembly rotates, blowing steam towards the filter cartridge section where the brush roller cleaning assembly is located. The brush roller cleaning assembly and the extrusion assembly together with the lower half of the filter cartridge form a closed dust collection cavity; The portion of the housing, excluding the dust collection chamber, is filled with industrial waste gas. The industrial waste gas, after being purified by the filter cartridge assembly, flows out through the through-hole on the driven ring rail. One end of the steam cleaning component is movably connected to the filter cartridge drive plate of the filter cartridge assembly, and the other end passes through the center hole of the driven ring rail of the filter cartridge assembly and is movably connected to the driven ring rail, so that the rotation of the drive of the filter cartridge assembly drives the filter cartridge to rotate, but the steam cleaning component remains stationary.

2. The purification method according to claim 1, characterized in that, Oily particulate matter in the industrial waste gas accumulates on the outer wall of the filter cartridge assembly. The steam cleaning assembly is installed inside the filter cartridge assembly and removes the oily particulate matter by spraying steam.

3. The purification method according to claim 2, characterized in that, High temperature and high pressure are used to clean away oil fume particulate pollutants from the filter screen or filter cartridge of the filter cartridge assembly.

4. The purification method according to claim 3, characterized in that, The steam cleaning assembly includes a steam nozzle and multiple steam holes disposed on the steam nozzle, wherein the steam holes in the steam cleaning assembly always blow steam downwards toward the filter cartridge.

5. The purification method according to claim 4, characterized in that, The steam cleaning assembly also includes an internal threaded connector, a steam inlet connecting pipe, a steam valve, a steam nozzle shaft seat, a steam nozzle plug, and bearings.

6. The purification method according to claim 5, characterized in that, The second and fourth pipe sections form an angle of 60-170 degrees with the third pipe section; The second and fourth pipe sections are connected to the third pipe section via an arc or a slow bend.

7. The purification method according to claim 6, characterized in that, The first pipe section is connected to the internal threaded connector at the left end via a through-shaft. The internal threaded connector is fixedly connected to the center hole of the driven ring rail of the filter cartridge assembly and is also connected to the steam inlet connection pipe via a through-shaft. The steam inlet connection pipe is connected to the steam valve pipeline, and the steam valve controls the flow rate of steam entering the steam inlet connection pipe. The right end of the steam nozzle is movably connected to a bearing on the filter cartridge drive plate. The bearing is connected to the steam nozzle shaft seat and a steam nozzle plug is provided at the end.

8. The purification method according to claim 7, characterized in that, The steam nozzle is provided with a plurality of steam holes arranged at intervals; Steam struts are provided between the second and fourth pipe sections, and the steam struts are positioned close to the first or fifth pipe section.

9. The purification method according to claim 8, characterized in that, The filter cartridge assembly is allowed to rotate by setting an internal threaded connector at the left end and a bearing and steam nozzle shaft seat at the right end, while the steam cleaning assembly remains stationary and always blows steam toward the side where the brush roller cleaning assembly is located.

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